the answer is B because it's B
Answer:
a² + b² + c² ≠ ab + bc + ca
<h3>
<u>PLEASE</u><u> MARK</u><u> ME</u><u> BRAINLIEST</u><u>.</u></h3>
5.5.ooooooooooooooooooooooooooooo1111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222333333333333333333333333333333333333333333344444444444444444444444444444444444444444444445555555555555555555555555555555555555555556666666666666666666666666666666666666777777777777777777777777777777777777788888888888888888889999999999999999999999999999999999999999999999999999999999999999999999999999999999
Answer:
Step-by-step explanation:
Given:
elongation, x = 0.50 in
Force, f = 9000 lb
Young modulus, E = 10,000,000 psi
Maximum Stress, Sm = 30000 psi
Length, L = 16 ft
Converting ft to in,
12 in = 1 ft
=16 × 12 = 192 in
Young modulus, E = stress/strain
Stress = force/area, A
Strain = elongation, x/Length, L
E = f × L/A × E
1 × 10^7 = stress/(0.5/16)
= 26041.7 psi
Minimum stress = 26041.7 psi
Maximum stress = 30,000 psi
Stress = force/area
Area = 9000/26041.7
= 0.3456 in^2
Stress = force/area
Area = 9000/30000
= 0.3 in^2
Using minimum area of 0.3 in^2,
A = (pi/4)(d^2)
0.3 in^2 = (pi/4)(d^2)
d = 0.618 inches
diameter, d = 0.618 inches
